Brick-moldin



UNITED STATES PATENT oEErcE'f 14 STEPHEN USTICK, OFPHILADELPHIA,PENNSYLVANIA.

BRICK-nonnina MACHINE.

Specification of Letters Patent'No. 5,187, dated Tuly 10, 1847.

To all whom t may concern.'

Be it known that I, STEPHEN USTICK, of Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented new and usefulImprovements in Machines for the Manufacture of Brick, and thatthefollowing is a full, clear, and exact descrip-V tion of the principle orcharacter which'distinguishes them from all other things before knownand of the manner of making, constructing, and using the same, referencebeing had to the accompanying drawings, making part of thisspecification, in which- Figure 1` is a plan of the machine; Fig. 2, a.view of the underside; Fig. 3, a side elevation; Fig. t, mold and partsdetached, and Figs. 5 and 6 modifications of the machine.

The same letters indicate like parts in all the figures.

The nature of my invention consists in an apparatus for molding dryclay, which is pulverized and sifted for that purpose.

It consists of the following parts: first, a pulverizer into which theclay is received from the bank; this pulverizer is an inclined revolvingshaft (a) surrounded-by a cylinder that turns in an opposite direction,the upper end of this shaft within the cylinder is armed with projectingpins that mesh in between similar pinsV standing out readily from theinsidev of the cylinder; as this is similar in construction to manyother machines for like purposes the interior is not shown. The clayafter passing down through the cylinder past the pins Vtothe lower endis then sifted through perforations (b) made in the cylinder for thatpurpose and is caught on an apron or hopper (c) under it which conveysthe clay into the circular hopper that supplies the molds.

The large pebbles and coarse clay being car` ried out of the end of thecylinder into a trough down which it runs out of the ma.

chine. The outer cylinder (b) is turned by a band (CZ) from a pulley ona shaft (e) above; on the same shaft there is a spur wheel (f) thatgears into a pinion (7L) on shaft (a) by which it is turned in adirection contrary to the surrounding cylinder. rlhe short shaftv (e)receives its motion from the driving shaft (g) through the spur wheel(i) and pinion (7c). The clay is dried by means of a hot air tube thatenters the shaft (a) at (a), or by surrounding the outer cylin-V derwith a furnace if required. The hopper (Z kinto which the clay isreceived from the pulverizer is of annular form and is at-V tached to ahorizontal wheel that is'made to revolve by means of t-he bevel gearing(m) and (a), that connects it with-the driving shaft (g) which arewithin the hopper while j,

the wheel (Z) is extended out some distance beyond it. This wheel turnson a stout center stud firmly fixed in the stationary frame thatpartlysurrounds the wheel to which several cams hereafter described arefv ialso attached beneath the wheel for moving,

the different pistons, belonging to the molds that are connected withthe wheel, as they revolve. in the'bottom of the annular hopper (Z),they .are lettered (0), beneath which the molds are situated. Thesemolds (see Fig. t) consist of a box (p) below which there is a frame(g), for the pistons to Vslide in horizontally which extends out alittle in front, and from this frame the shanks of two pistons projectradiallyq one of which (r) I denominatethe inner piston is toward theaxle of the wheel and forms the side of the press on that side, theother Y(s) projects toward the periphery of the wheel and forms theopposite side of the'l press: between these the clay is consolidated.The underside of each of the pistons is furnished with a small studroller (u) and ontheir extreme outer ends they have broad frictionrollers (u), the `former work in light'V grooves to regulate the motionof the pistons when not pressing; the others come in contactwithpermanent cams aty the proper When i i the mold arrives at thepoint (o)where it v is to receive its charge of clay both of the pistons arespread apart so as to leave an open space from the box (29) down betweenE them; they are brought to this position by j.

means of the cam grooves in which the stud rollers (u) above named run;these cam grooves (w) are adjustable andtheir distance apart isregulated by a radialV screw which determines the quantity of clay thatshall be filled into the mold, by causing the pistonsto approach orrecedeA from each other as they are adjusted. When i'illed the moldmoves on as the wheel turnsy in the '10 The openings into the molds areY outside the mold.

(y) bears against the friction roller on the end of the piston rod (r)while this inner piston is thrust forward the outer one is allowed torecede a little by the form of the cam groove (fw), which guides it,till the clay between the pistons, which is to form the brick, is thrustoutward far enough to carry it beyond the boX (7J) into the space whereit is pressed, the outer piston then stops and resists the pressure ofthe inner one which is still borne forward by the cam (y) till a certainamount of pressure isV produced on the brick, the cam then becomeconcentric with Vthe wheel so as to keep the piston (r) stationary inthe mold'` and then the outer piston (s) isforced inward by an outerstationary cam (e) till the brick is suiiiciently pressed. The studwheels on the pistons are then acted on by stationary guides orV cams(y) and (e) which move both pistons out carrying the brick with themunder a `vertical piston (s) placed at right angles to them in a framein the wheel When the face Vof the outer piston has advanced to theoutside of the mold, by a suitable form of the cam groove (w) in whichthe stud roller of the piston works, the piston is moved more rapidlythan the inner one to remove it entirely from the brick. When the brickis thus pushed out of the mold the horizontal wheel (Z) has revolved farenough to bring the upper end of the rod of piston (3') intocontact'with a stationary cam (15') attached to the frame above, seeFig. 3, this forces the piston (s) `down and discharges the brick below,whence it can be carried olf by an endless apron or other convenientdevice;

and the pistons are by their guides brought into the first position forreceiving clay. A series of any number of molds may be put into thewheel which follow each other consecutively through all of the abovedescribed positions, being supplied with clay at the point (v) anddischarging the brick at the cam (t). The frame can be made of any 'wand 6.

suitable material and should be suiciently bracedV to Vresist thepressure upon the stationary cams attached thereto; this is shown inthedrawings and designated by letters (A` A) but these parts are notdescribed, as they may be indefinitely changed to suit the views of themanufacturer or purchaser.

Many parts of my machine can be modified, an example of which I give inFigs. In these figures corresponding parts .or those which aresubstituted for others in the main description bear the same letters:`the. most essential change is in the cam (z) for pressing` in the outerpiston l (s), this has a little carriage running on two horizontalwheels (11') with flanches on them Vthat fit on and are guided by saidcam (z) this carriage is kept in place and guided by a third wheel thatis also horizontal and grooved, this fits a rail (Z) parallel withcam,(z), the end of the outer piston (s) as it comes 4around to thiscarriage strikes 1t andcarries 1t around the length.

of the cam where it is disengaged; Fi'g. 5 shows the piston and carriagein contact. When disengaged the carriage is drawn back. by a cord andweight over proper pulleys.

Having thus fully described my machine, what I claim'therein as new anddesire to secure by Letters Patent is- 1. The combination of the pistonswith the camsin the manner described, said cams y being adjustable andguiding the pistons during the whole revolution of the wheelsubstantially as herein set forth.

Y 2. I claim the combination of the revolving screen and pulverizer withthe horizontal wheel of molds, constructed substantially as hereinbeforedescribed.

3. And lastly, I claim in combination withithe double piston mold theapparatus for discharging the brick from the mold Y,

andvcleaning the face of the pistons consisting of the vertical pistonand cam arranged as described.

Y 1 STEPHEN USTICK. Witnesses:

MASON NAYLon,

CHAUN cnr BULKLY.

